Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced Photolysis
Graphene (Gr)/gold (Au) and graphene-oxide (GO)/Au nanocomposites (NCPs) were synthesized by performing pulsed-laser-induced photolysis (PLIP) on hydrogen peroxide and chloroauric acid (HAuCl<sub>4</sub>) that coexisted with Gr or GO in an aqueous solution. A 3-month-long aqueous solutio...
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doaj-51f279b3ccc54a63b87b8acfbbe05f9c2020-11-25T04:00:30ZengMDPI AGNanomaterials2079-49912020-10-01101985198510.3390/nano10101985Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced PhotolysisLi-Hsiou Chen0Huan-Ting Shen1Wen-Hsin Chang2Ibrahim Khalil3Su-Yu Liao4Wageeh A. Yehye5Shih-Chuan Liu6Chih-Chien Chu7Vincent K. S. Hsiao8Department of Pulmonary Medicine, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 427, TaiwanDepartment of Pulmonary Medicine, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 427, TaiwanDepartment of Medical Applied Chemistry, Chung Shan Medical University, Taichung 40201, TaiwanDepartment of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou 54561, TaiwanDepartment of Electrical Engineering, National Chi Nan University, Nantou 54561, TaiwanNanotechnology & Catalysis Research Centre (NANOCAT), Institute for Advanced Studies, University of Malaya, Kuala Lumpur 50603, MalaysiaDepartment of Health Diet and Industry Management, Chung Shan Medical University, Taichung 40201, TaiwanDepartment of Medical Applied Chemistry, Chung Shan Medical University, Taichung 40201, TaiwanDepartment of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou 54561, TaiwanGraphene (Gr)/gold (Au) and graphene-oxide (GO)/Au nanocomposites (NCPs) were synthesized by performing pulsed-laser-induced photolysis (PLIP) on hydrogen peroxide and chloroauric acid (HAuCl<sub>4</sub>) that coexisted with Gr or GO in an aqueous solution. A 3-month-long aqueous solution stability was observed in the NCPs synthesized without using surfactants and additional processing. The synthesized NCPs were characterized using absorption spectroscopy, transmission electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and X-ray diffraction to prove the existence of hybrid Gr/Au or GO/Au NCPs. The synthesized NCPs were further evaluated using the photocatalytic reaction of methylene blue (MB), a synthetic dye, under UV radiation, visible light (central wavelength of 470 nm), and full spectrum of solar light. Both Gr/Au and GO/Au NCPs exhibited photocatalytic degradation of MB under solar light illumination with removal efficiencies of 92.1% and 94.5%, respectively.https://www.mdpi.com/2079-4991/10/10/1985graphenegraphene oxidegoldnanocompositephotolysisphotocatalysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Li-Hsiou Chen Huan-Ting Shen Wen-Hsin Chang Ibrahim Khalil Su-Yu Liao Wageeh A. Yehye Shih-Chuan Liu Chih-Chien Chu Vincent K. S. Hsiao |
spellingShingle |
Li-Hsiou Chen Huan-Ting Shen Wen-Hsin Chang Ibrahim Khalil Su-Yu Liao Wageeh A. Yehye Shih-Chuan Liu Chih-Chien Chu Vincent K. S. Hsiao Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced Photolysis Nanomaterials graphene graphene oxide gold nanocomposite photolysis photocatalysis |
author_facet |
Li-Hsiou Chen Huan-Ting Shen Wen-Hsin Chang Ibrahim Khalil Su-Yu Liao Wageeh A. Yehye Shih-Chuan Liu Chih-Chien Chu Vincent K. S. Hsiao |
author_sort |
Li-Hsiou Chen |
title |
Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced Photolysis |
title_short |
Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced Photolysis |
title_full |
Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced Photolysis |
title_fullStr |
Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced Photolysis |
title_full_unstemmed |
Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced Photolysis |
title_sort |
photocatalytic properties of graphene/gold and graphene oxide/gold nanocomposites synthesized by pulsed laser induced photolysis |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2020-10-01 |
description |
Graphene (Gr)/gold (Au) and graphene-oxide (GO)/Au nanocomposites (NCPs) were synthesized by performing pulsed-laser-induced photolysis (PLIP) on hydrogen peroxide and chloroauric acid (HAuCl<sub>4</sub>) that coexisted with Gr or GO in an aqueous solution. A 3-month-long aqueous solution stability was observed in the NCPs synthesized without using surfactants and additional processing. The synthesized NCPs were characterized using absorption spectroscopy, transmission electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and X-ray diffraction to prove the existence of hybrid Gr/Au or GO/Au NCPs. The synthesized NCPs were further evaluated using the photocatalytic reaction of methylene blue (MB), a synthetic dye, under UV radiation, visible light (central wavelength of 470 nm), and full spectrum of solar light. Both Gr/Au and GO/Au NCPs exhibited photocatalytic degradation of MB under solar light illumination with removal efficiencies of 92.1% and 94.5%, respectively. |
topic |
graphene graphene oxide gold nanocomposite photolysis photocatalysis |
url |
https://www.mdpi.com/2079-4991/10/10/1985 |
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